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แŠ แ‹ฒแˆต แ‹˜แˆ˜แŠ• แŒฅแˆญ 16 แ‰€แŠ• 2018
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โค1
แŒจแˆจแ‰ณ

แŠ แ‹ฒแˆต แ‹˜แˆ˜แŠ• แŒฅแˆญ 16 แ‰€แŠ• 2018
แ‹“. แˆ แ‹•แ‰ตแˆ แˆ‹แ‹ญ แ‹จแ‰ฐแ‹ˆแˆฐแ‹ฐ

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แŒจแˆจแ‰ณ

แŠ แ‹ฒแˆต แ‹˜แˆ˜แŠ• แŒฅแˆญ 18 แ‰€แŠ• 2018
แ‹“. แˆ แ‹•แ‰ตแˆ แˆ‹แ‹ญ แ‹จแ‰ฐแ‹ˆแˆฐแ‹ฐ

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โค2๐Ÿ‘1
แŒจแˆจแ‰ณ

แŠ แ‹ฒแˆต แ‹˜แˆ˜แŠ• แŒฅแˆญ 18 แ‰€แŠ• 2018
แ‹“. แˆ แ‹•แ‰ตแˆ แˆ‹แ‹ญ แ‹จแ‰ฐแ‹ˆแˆฐแ‹ฐ

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โค3๐Ÿ‘1
‎๐Ÿ‘‰Concrete Curing (Methods, Importance & Site Practice โ€“ Practical & Technical) questions

‎1. What is concrete curing?

‎Concrete curing is the process of maintaining adequate moisture, temperature, and time to allow proper hydration of cement and strength development.
‎
‎2. Why is curing important in concrete works?

‎Curing improves strength, durability, impermeability, and reduces cracking and surface defects.
‎
‎3. When should concrete curing start?

‎Curing should start immediately after the concrete has set sufficiently to prevent surface damage.
‎
‎4. What happens if concrete is not properly cured?

‎Poor curing leads to low strength, surface cracking, dusting, shrinkage, and reduced durability.
‎
‎5. What are the main objectives of concrete curing?

‎To prevent moisture loss, control temperature, and ensure complete cement hydration.
‎
‎6. What are the common methods of concrete curing?

‎Water curing, membrane curing, steam curing, and curing compounds.
‎
‎7. What is water curing?

‎A curing method where water is applied continuously to keep the concrete surface moist.
‎
‎8. What are examples of water curing methods?

‎Ponding, sprinkling, wet hessian covering, and continuous water spray.
‎
‎9. Where is ponding commonly used?

‎On flat surfaces such as slabs, pavements, and bridge decks.
‎
‎10. What is membrane curing?

‎A method that involves covering the concrete surface with impermeable materials to prevent moisture loss.
‎
‎11. What materials are used for membrane curing?

‎Polythene sheets, bituminous membranes, and curing compounds.
‎
‎12. What is curing compound?

‎A liquid chemical applied to the concrete surface to form a moisture-retaining film.
‎
‎13. Where are curing compounds commonly used?

‎Road works, large concrete surfaces, and areas where water curing is difficult.
‎
‎14. What is steam curing?

‎A curing method using steam to accelerate strength gain, mainly for precast concrete elements.
‎
‎15. Where is steam curing applied?

‎Precast yards, concrete blocks, pipes, and factory-produced elements.
‎
‎16. How long should concrete curing last?

‎Generally 7 days for ordinary Portland cement and at least 14 days for blended cements, depending on specifications.
‎
‎17. How does temperature affect curing?

‎High temperatures increase evaporation and risk of cracking, while low temperatures slow down strength development.
‎
‎18. What precautions should be taken during hot weather curing?

‎Increase curing frequency, protect surfaces from direct sunlight, and use windbreaks where necessary.
‎
‎19. Who is responsible for ensuring proper concrete curing on site?

‎The site engineer, quality control engineer, and site supervisors.
‎
‎20. How does proper curing affect concrete durability?

‎It improves resistance to abrasion, weathering, chemical attack, and extends the service life of the structure.
‎
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โค14๐Ÿ‘1
๐Ÿ‘‰แ‰ แ‹›แˆฌแ‹ แŠฅแˆˆแ‰ต แ‹จแˆธแ‰ แˆŒ แˆชแ‹žแˆญแ‰ต แ‰ แ‹ญแ‹ แ‰ฐแˆ˜แˆญแ‰‹แˆ

๐Ÿ’ซแˆชแ‹žแˆญแ‰ฑ แ‹จแŒˆแ‰ แ‰ณ แˆˆแ‰ตแ‹แˆแ‹ต แ‹‹แАแŠ› แ•แˆฎแŒ€แŠญแ‰ต แˆฒแˆ†แŠ• แ‰ 385 แˆ„แŠญแ‰ณแˆญ แˆ˜แˆฌแ‰ต แˆ‹แ‹ญ แ‹ซแˆจแˆ แАแ‹แค แ‰ แŠ แŠ•แ‹ต แŒŠแ‹œ แŠฅแˆตแŠจ 400 แŠฅแŠ•แŒแ‹ถแ‰ฝแŠ• แˆ›แˆตแ‰ฐแŠ“แŒˆแ‹ต แ‹จแˆšแ‰ฝแˆ‰ แˆฆแˆตแ‰ต แˆแŒแ‰ฅ แ‰คแ‰ถแ‰ฝแฃ แˆแ‹ฉ แ‹จแ‰ฃแˆ•แˆ แˆ›แ‹•แŠจแˆแฃ แ‹˜แˆ˜แŠ“แ‹Š แ‹จแŠญแ‰ฅแˆจ-แ‰ แ‹“แˆ‹แ‰ตแŠ“ แ‹จแˆตแ‰ฅแˆฐแ‰ฃ แŠ แ‹ณแˆซแˆพแ‰ฝ แŠ แˆ‰แ‰ตแค

๐ŸšงแŠฅแŠ•แ‹ฒแˆแˆแฆ แ‹จแˆ•แƒแŠ“แ‰ต แˆ˜แŒซแ‹ˆแ‰ป แˆตแแˆซแ‹Žแ‰ฝแŠ“ 15.4 แŠชแˆŽ แˆœแ‰ตแˆญ แ‹จแˆšแˆจแ‹แˆ™ แ‹จแŠฅแŒแˆจแŠ› แˆ˜แŠ•แŒˆแ‹ถแ‰ฝแŠ• แ‹จแ‹ซแ‹˜แ‹ แ‹จแˆธแ‰ แˆŒ แˆชแ‹žแˆญแ‰ตแค แˆ›แŠ…แ‰ แˆซแ‹Š แ‰ตแˆตแˆตแˆญแŠ• แˆˆแˆ›แŒ แŠ“แŠจแˆญ แ‰ณแˆณแ‰ข แ‰ฐแ‹ฐแˆญแŒŽ แ‹จแ‰ฐแŒˆแАแ‰ฃ แАแ‹แค


๐Ÿ’ซ10,000 แ‹จแแˆซแแˆฌ แ‰ฐแŠญแˆŽแ‰ฝ แŠซแˆจแ‰แ‰ แ‰ต แ‹จแแˆซแแˆฌ แ“แˆญแŠญ แŒ€แˆแˆฎ แŠฅแˆตแŠจ แ‹‹แŠ“แ‹ แ‹จแŒแˆ˜แˆ แ“แˆญแŠญ แ‹ตแˆจแˆตแค แŠฅแ‹ซแŠ•แ‹ณแŠ•แ‹ฑ แ‹จแˆชแ‹žแˆญแ‰ฑ แŒˆแŒฝแ‰ณ แ‹จแŠขแ‰ตแ‹ฎแŒตแ‹ซแŠ• แ‰ฐแˆแŒฅแˆฏแ‹ŠแŠ“ แ‰ฃแˆ…แˆ‹แ‹Š แˆแ‰ฅแ‰ต แ‹จแˆšแ‹ซแŠ•แ€แ‰ฃแˆญแ‰… แАแ‹แฃ

โบแ‰ 51 แ‹จแ‰ฐแŒ แŠ“แ‰€แ‰ แ‹จแˆ˜แŠแ‰ณ แŠญแแˆŽแ‰ฝแŠ“ แ‰ แ‹“แˆˆแˆ แŠ แ‰€แ แ‹ฐแˆจแŒƒ แ‰ แˆšแŒˆแŠ™ แ‹จแ‰ฑแˆชแ‹แˆ แŠ แŒˆแˆแŒแˆŽแ‰ถแ‰ฝ แŠฅแ‹แŠ• แ‹จแˆ†แАแ‹ แˆธแ‰ แˆŒ แˆชแ‹žแˆญแ‰ตแค แŠขแ‰ตแ‹ฎแŒตแ‹ซแŠ• แ‰ แŠ แแˆชแŠซ แ‰€แ‹ณแˆš แ‹จแ‰ฑแˆชแˆตแ‰ต แˆ˜แ‹ณแˆจแˆป แˆˆแˆ›แ‹ตแˆจแŒ แ‰ แˆšแ‹ฐแˆจแŒˆแ‹ แŒ‰แ‹ž แ‹แˆตแŒฅ แ‰ตแˆแ‰… แ‰ณแˆชแŠซแ‹Š แŠฅแŒฅแ‹แ‰ต แАแ‹แค

แ‹ญแˆ… แ•แˆฎแŒ€แŠญแ‰ต แˆ…แˆแˆแŠ• แ‹ˆแ‹ฐ แŠฅแ‹แАแ‰ต แ‹จแˆ˜แˆˆแ‹ˆแŒฅแค แ‹จแŠขแ‰ตแ‹ฎแŒตแ‹ซแŠ• แ‹จแ‰ฐแˆแŒฅแˆฎแŠ“ แ‹จแ‰ฃแˆ…แˆ แŒธแŒ‹แ‹Žแ‰ฝ แˆ˜แˆ‹แ‹ แ‹“แˆˆแˆ แ‹จแˆšแŠซแˆแˆˆแ‹ แ‰…แˆญแˆต แ‹จแˆ›แ‹ตแˆจแŒ แ‹จแˆ˜แ‹ฐแˆ˜แˆญ แˆ˜แŠ•แˆแˆต แ‰ แ‰ฐแŒแ‰ฃแˆญ แ‹จแ‰ณแ‹จแ‰ แ‰ต แ‰ณแˆ‹แ‰… แˆตแˆซ แАแ‹แกแก

Via PMO Ethiopia


@etconp
โค13
๐Ÿ‘‰แ‹ฑแ‰ฃแ‹ญ แ‰ แ‹ˆแˆญแ‰… แˆ˜แŠ•แŒˆแ‹ต แˆแ‰ตแŒˆแАแ‰ฃ แАแ‹

๐Ÿšงแ‹ญแˆ… แ‰ แ‹“แˆˆแˆ แ‹จแˆ˜แŒ€แˆ˜แˆชแ‹ซแ‹ แАแ‹ แŒ‰แ‹ณแ‹ฉแˆ แˆ˜แАแŒ‹แŒˆแˆชแ‹ซ แˆ†แŠ—แˆแข

โบแˆ˜แˆชแ‹Žแ‰ฟ แ‹ฑแ‰ฃแ‹ญ แ‰ แ‹“แˆˆแˆ แ‹จแˆ˜แŒ€แˆ˜แˆชแ‹ซแ‹ แ‹จแ‹ˆแˆญแ‰… แŒŽแ‹ณแŠ“ แˆ˜แŒˆแŠ› แ‰ตแˆ†แŠ“แˆˆแ‰ฝแข

โบแ‹ฑแ‰ฃแ‹ญ แ‰ฅแ‹™ แŒŠแ‹œ "แ‹จแ‹ˆแˆญแ‰… แŠจแ‰ฐแˆ›" แ‹จแˆšแˆ แ‰…แŒฝแˆ แˆตแˆ แ‰ตแˆฐแŒฃแˆˆแ‰ฝ แˆแŠญแŠ•แ‹ซแ‰ฑแˆ แ‰ แ‹“แˆˆแˆ แˆ‹แ‹ญ แŠซแˆ‰แ‰ต แ‰ตแˆ‹แˆแ‰… แ‹จแ‹ˆแˆญแ‰… แˆ˜แŒˆแ‰ แ‹ซแ‹Žแ‰ฝ แŠจแ‰ฐแˆžแ‰ฝ แŠ แŠ•แ‹ท แ‰ แˆ˜แˆ†แŠ‘ แАแ‹แข

โบแŠ แˆแŠ• แŒญแˆซแˆฝ แˆ˜แŠ•แŒˆแ‹ต แˆแ‰ตแˆฐแˆซแ‰ แ‰ต แАแ‹แข

@etconp
๐Ÿ‘8โค5
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๐Ÿ”น Address 1: Signal road, around
Dinberwa Hospital

๐Ÿ”น Addres 2: Wellosefer, Infront of
Dani Plaza
โค1
3155. Which station is primarily used for train overtaking?
Anonymous Quiz
16%
(a) Junction station
16%
(b) Flag station
30%
(c) Crossing station
38%
(d) Terminal station
โค4
3153. In earthen dam at the entry point, the phreatic line must be normal to the
Anonymous Quiz
15%
(a) Directrix
16%
(b) Focus
46%
(c) Upstream face
22%
(d) Downstream dam
๐Ÿ‘4
3152. Assertion (A): Subgrade soil must have good drainage properties.
Reason (R): Good drainage helps reduce moisture retention and frost action.
Anonymous Quiz
21%
(a) Both A and R are true, but R is not the correct explanation of A.
16%
(b) A is true, but R is false.
51%
(c) Both A and R are true, and R is the correct explanation of A.
12%
(d) A is false, but R is true.
โค2๐Ÿ‘2
3151. Which of the following describes the requirements, dimensions, materials and procedures that are used to achieve the construction of any building?
Anonymous Quiz
12%
(a) Description of contract
58%
(b) Specification
28%
(c) Bill of quantities
3%
(d) Schedule of rates
โค6๐Ÿ‘3
3149. In construction cost estimate and valuation, 'plinth area estimate' is commonly used for which of the following purposes?
Anonymous Quiz
62%
(a) Quick estimation of building cost based on built-up area
16%
(b) Calculating only the foundation cost
11%
(c) Industrial construction projects
11%
(d) Estimating the cost of roads and bridges
โค10๐Ÿ‘2
3147. What is the maximum permissible vertical deflection under live load for purlins supporting brittle cladding in an industrial building, according to IS: 800 โ€“ 2007?
Anonymous Quiz
31%
(a) Span/180
35%
(b) Span/240
21%
(c) Span/500
12%
(d) Span/300
โค2๐Ÿ‘2